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Old 03-19-2003, 05:53 AM
  #4  
CafeenMan
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Default Plane weight to engine size

There are rules of thumbs for types of aircraft - not for aircraft overall.

For example a good .40 trainer has about 700 inches of wing. That's way too much wing for a .40 sport plane.

So to answer your question, no there isn't a generic rule of thumb. You have to include the kind of plane you're talking about as part of the question.